Gigi Hadid and Bradley Cooper’s Boucheron Rings are a Modern Take on a Classic Trend Loved by Grace Kelly and Princess Diana

Mixed-metal jewelry is officially having a moment again—and Gigi Hadid and Bradley Cooper may have just made it the must-have trend of the year. The couple sparked engagement and wedding speculation after they were spotted wearing matching rings on their left hands, believed to be from the iconic French luxury jeweler Boucheron. While neither has confirmed they’ve tied the knot, the coordinating bands have certainly gotten people talking.

For years, mixing gold and silver was considered a fashion don’t. Now, thanks to stylish couples like Hadid and Cooper, the once-taboo combination is back—and more sophisticated than ever. In fact, they’re far from the first trendsetters to embrace the look. Royal icons including Grace Kelly and Diana, Princess of Wales famously wore mixed-metal rings decades ago, proving the timeless style never truly disappeared. Discover the history behind the enduring trend and see how Hadid and Cooper are giving it a fresh, modern update.

Gigi Hadid and Bradley Cooper’s rings

Earlier this month, Hadid stepped out wearing a Quatre Radiant Edition wedding band in 18k yellow and white gold from Boucheron. The ring also features 33 diamonds as well. Cooper’s ring is a simpler rose gold band and although it’s all one metal, it creates the allusion of two because it has two distinct finishes.

Logan Hollowell, founder and CEO of Logan Hollowell Jewelry, shared his thoughts on why mixed metals have been making a return and why so many celebrities love the look. He said, “Mixed metals have become incredibly meaningful because they represent the idea that two distinct energies can exist beautifully together. Yellow gold carries warmth, vitality, and the energy of the sun, while white gold feels cooler, luminous, and refined. Together, they create balance.”

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Grace Kelly and Princess Diana loved mixed-metals

Hadid’s ring slightly resembles the bling beloved by a few royals over the years, including Grace Kelly and Princess Diana. Both women often donned the Cartier Trinity ring, which is a a tri-color gold rolling ring featuring three interlocking bands of yellow, white and rose gold. The Duke of Windsor also wore the Cartier Trinity ring, which really helped to popularize the look.

“There’s something mysterious and magical about Trinity,” says Pierre Rainero, Cartier’s image, style and heritage director. “How it is made is what everyone asks when they first see it, and all the while, they can’t stop playing with it.”

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Although the Trinity ring was not a wedding ring for Kelly or Princess Diana’s wedding ring, they did frequently wear them as an everyday, casual piece.

How Hadid and Cooper’s rings resemble the Trinity

While neither Hadid’s nor Cooper’s rings feature all three metals found in the iconic Cartier Trinity ring, the pair’s bands together create a similar effect. Hadid’s ring appears to combine yellow gold and white gold, while Cooper’s reportedly features rose gold—meaning that when the two rings are viewed side by side, they evoke the same harmonious mix of metals that made the Trinity design a timeless classic.

Whether or not the rings are wedding bands remains unconfirmed, but one thing is clear: the mixed-metal jewelry trend is having a major comeback. The couple’s coordinating styles are a stylish reminder that gold and silver don’t have to compete—they can complement each other beautifully.